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The specific heat of a substance depends...

The specific heat of a substance depends on

A

mass of the substance

B

temperature of the substance

C

nature of material of the substance

D

both (a) and (b)

Text Solution

Verified by Experts

The correct Answer is:
D
The specific heat of a substance depends mainly on nature of material of the substance. It would also depend upon initial temperature of the substance.
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Specific heat of a substance can be

How much heat (in joule) is required to raise the temperature of 205 g of water from 21.2^(@)C to 91.4^(@)C . Specific heate of water is 4.18 J g^(-1) .^(@)C^(-1) Strategy : The specific heat of a substance is the amount of heat required to raise the temperature of 1g of the substance by 1^(@C . Thus Specific heat = (("Amount of heat in joules"))/(("Mass of substance in grams")("Temperature change in" .^(@)C)) Rearrangement gives. Amount of heat (q) = Mass of substance (m) xx Specific heat (c ) xx Temperature change (Delta T)

Knowledge Check

  • Specific heat of a substance depends on its

    A
    mass
    B
    volume
    C
    temperature
    D
    nature of materia

  • When temperature is gradually decreased, the specific heat of a substance is

    A
    decreased
    B
    increased
    C
    remain unchanged
    D
    nothing can be said

  • When temperature is gradually decreased the specific heat of substance is

    A
    decreased
    B
    increased
    C
    remain unchanged
    D
    none of these

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    The specific gravity of a substance is the ratio of the density of the substance to the density of ____.

    If specific heat of a substance is infinite, it means

    Assertion : Specific heat of any substance remains constant at all temperatures. Reason : It is given by s= 1/m * (dQ)/(dt) .

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